Sealer Sales KF-300CS & KF-200CS Heat Sealer Review

When it comes to sealing thicker bags shut, such as cellophane, coffee bags, coated aluminum and Kraft paper, you are probably going to need something a little tougher than your standard impulse bag sealer. That is where direct heat sealers come into play. Two of our most popular direct heat sealers are the KF-200CS (found here) and the KF-300CS (found here) from Sealer Sales. These machines are similar in every way except the sealing width. So is the KF series direct heat sealers a good match for you? Read on!

Impulse sealers are extremely popular tools for sealing bags shut, often made from materials such as polypropylene and polyethylene. Impulse sealers are designed to be quick, safe to operate and efficient. The only downside with impulse sealers is that the often can’t handle the thicker stuff, unless you go with a double impulse sealer (often more expensive). For this reason, direct heat sealers (often called constant heat sealers) fit the bill.

Direct heat sealers are continually on and produce a lot of heat. The result is the ability to quickly seal thicker bags shut such as those made from cellophane, Kraft paper and coated aluminum. The KF-300CS is 12″ wide and the KF-200CS is 8″ wide. This is enough width to seal most retail food bags and other thicker bags. Both models feature an adjustable temperature control. The seal produced by both of these sealers features a nice serrated pattern (horizontal lines) that is 15mm thick.

These sealers do produce a lot of heat. As a result, both of these sealers have had their jaws coated in PTFE, which is a non-stick surface much like what you find in a pan. This helps the sealer to seal the plastic shut without sticking to it. The design works remarkably well and is very fast, taking just seconds to seal a bag shut.

Because both of these sealers feature a portable handheld design, they are extremely easy to use, maneuver and operate. They are also great for use with odd sized packages and material. An included stand helps to keep the sealer in place when not in use or in place while packaging. Rubber handgrips help to protect the operator from the heat.

Here is a video demo of the KF series of direct heat sealers in action:

One thing to keep in mind while using either the KF-300CS or the KF-200CS is that they get very hot. They take about 5-15 minutes to fully warm up and take several minutes to cool back down. Do not touch the jaws at any time as you could seriously burn yourself. As long as you take the proper precautions, you will be very happy with these direct heat sealers.

As is the case with most Sealer Sales products, both the KF-300C and KF-200CS are solid products. They are made using high quality metal products including the jaws and the handles. If you need something a little bigger than 12″, you may want to consider using the 16″ FKR-400 bag sealer found here. You can find our entire selection of bag and hand sealers here. Please feel free to call us at 1-800-658-8788 with any questions.